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Class Information
Number: 210/132
Name: Liquid purification or separation > Flow, fluid pressure or material level, responsive > Fluid pressure responsive by-pass > With additional separation or treating means
Description: Apparatus in which the by-pass contains separation or treatment means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7615146 |
Fluid filter with restrictive filter media for pressure relief |
Nov. 10, 2009 |
| 7513992 |
Filtration device with pressure-activated means for bypassing serial filter layers |
Apr. 7, 2009 |
| 7399419 |
Modular filtration system |
Jul. 15, 2008 |
| 7357865 |
Automatic transmission fluid filtration system |
Apr. 15, 2008 |
| 7329342 |
Metallic particle trap bypass filter |
Feb. 12, 2008 |
| 7279091 |
Filter device |
Oct. 9, 2007 |
| 7243740 |
Filter assembly having a bypass passageway and method |
Jul. 17, 2007 |
| 7182855 |
Fuel filter with valve indicator |
Feb. 27, 2007 |
| 7166210 |
Oil filter cartridge |
Jan. 23, 2007 |
| 7056432 |
Tank mounted oil filter assembly |
Jun. 6, 2006 |
| 6972087 |
Transmission sump filter with bypass valve |
Dec. 6, 2005 |
| 6908545 |
Hydraulic filter assembly with priority valve |
Jun. 21, 2005 |
| 6884341 |
Filter device to capture a desired amount of material |
Apr. 26, 2005 |
| 6881330 |
Multi-stage EDM filter |
Apr. 19, 2005 |
| 6841065 |
Fluid filter with pressure relief valve |
Jan. 11, 2005 |
| 6818122 |
Dual stage filter element bypass valve |
Nov. 16, 2004 |
| 6773588 |
Purified water supply system |
Aug. 10, 2004 |
| 6758980 |
Liquid filter with separate and calibrated vapor release |
Jul. 6, 2004 |
| 6733666 |
Filtering device, especially a suction return filter |
May. 11, 2004 |
| 6638423 |
Multiple stage fuel strainer assembly |
Oct. 28, 2003 |
| 6605210 |
Hydraulic fluid filter device |
Aug. 12, 2003 |
| 6585887 |
End cap relief valve mechanism for a filter |
Jul. 1, 2003 |
| 6540909 |
Fluid filter with pressure relief valve |
Apr. 1, 2003 |
| 6485634 |
Filtration system for industrial coolants |
Nov. 26, 2002 |
| 6423215 |
Fluid filter unit with automatic clogged filter element bypass and ferrous indicator flag |
Jul. 23, 2002 |
| 6375833 |
Filter assembly with UV treatment, filter bypass, and clogging indicator |
Apr. 23, 2002 |
| 6306291 |
Automatic silt density index apparatus |
Oct. 23, 2001 |
| 6267875 |
Reusable spin-on multi system oil filter and method of reclaiming used filter canisters |
Jul. 31, 2001 |
| 6165355 |
Fluid filter having a three way valve construction |
Dec. 26, 2000 |
| 6139725 |
Oil reclamation device with vaporization chamber |
Oct. 31, 2000 |
| 6126818 |
Filter system for the lubricant of an internal combustion engine |
Oct. 3, 2000 |
| 5922199 |
Double pass fuel filter assembly |
Jul. 13, 1999 |
| 5916435 |
Conical coreless filter assembly and element |
Jun. 29, 1999 |
| 5885447 |
Liquid filtration system incorporating a bypass filter element |
Mar. 23, 1999 |
| 5830347 |
Cleaning mechanism for a fluid filter |
Nov. 3, 1998 |
| 5814211 |
Reusable spin-on multi system oil filter |
Sep. 29, 1998 |
| 5814215 |
Oil filter including an integral filter support and housing drain valve assembly |
Sep. 29, 1998 |
| 5681454 |
Liquid processing plant |
Oct. 28, 1997 |
| 5395518 |
High pressure filter with integral relief valve |
Mar. 7, 1995 |
| 5160037 |
Filter assembly having by-pass system |
Nov. 3, 1992 |
| 5112476 |
Liquid filter assembly |
May. 12, 1992 |
| 4954222 |
Dry cleaning solvent filtration and recovery system with filter rinsing apparatus |
Sep. 4, 1990 |
| 4905644 |
Self cleaning by-pass filtration arrangement |
Mar. 6, 1990 |
| 4897185 |
Cell processing apparatus and method |
Jan. 30, 1990 |
| 4885084 |
Nozzle/venturi with pressure differentiating bypass |
Dec. 5, 1989 |
| 4885082 |
Multiple lubricating oil filter for internal combustion engines, with a member for monitoring the degree of clogging of the filtration surface |
Dec. 5, 1989 |
| 4802979 |
Fluid filter having separable elements and removable end closures |
Feb. 7, 1989 |
| 4772387 |
Device for conditioning water containing calcium carbonate and installation constructed with this device |
Sep. 20, 1988 |
| 4755289 |
Lubricant filter for internal combustion engines |
Jul. 5, 1988 |
| 4735713 |
Lamination dispenser |
Apr. 5, 1988 |
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